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Fix scanning of do-while statement. (#3149)

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The newline before the while part is misinterpreted.

JerryScript-DCO-1.0-Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
This commit is contained in:
Zoltan Herczeg 2019-09-23 15:38:15 +02:00 committed by Dániel Bátyai
parent f2013fcb1a
commit 35a3df3f28
2 changed files with 28 additions and 1 deletions
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2
jerry-core/parser/js/js-scanner.c
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@ -1464,7 +1464,7 @@ scanner_scan_statement_end (parser_context_t *context_p, /**< context */
parser_stack_pop_uint8 (context_p);
if (type != LEXER_KEYW_WHILE
|| (!terminator_found && (context_p->token.flags & LEXER_WAS_NEWLINE)))
|| (!terminator_found && !(context_p->token.flags & LEXER_WAS_NEWLINE)))
{
scanner_raise_error (context_p);
}

27
tests/jerry/do-while.js Normal file
View File

@ -0,0 +1,27 @@
// Copyright JS Foundation and other contributors, http://js.foundation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
var a = 0;
do a++
while (false)
do { a++ } while (false)
try {
eval("do a++ while (false)");
assert (false);
} catch (e) {
assert (e instanceof SyntaxError);
}